Harrow.



No. 679,854. Patented Aug. 6, |9o|.'

J. w. MILLER.

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Application filed Mu. 22, 1901.)

(No Model.)

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NITED STATES ATENT FHCE.

JACOB W. MILLER, OF MARION, OHIO, ASSIGNOR OE ONE-HALF TO EDl/VARDHUBER, OE SAME PLACE.

HARROW.

SPECIFICATION forming part of Letters Patent No. 679,854, dated August6, 1901.

Application filed March 22, 1901. Serial No. 52,365. (No model.)

To otZZ whom itmay concern.-

Be it known that I, JACOB W. MILLER, a citizen of the United States,residing at Marion, in the county of Marion and State of Ohio, haveinvented a certain new and useful Improvement in Harrows, of which thefollowing is a specification.

My invention relates to barrows, and particularly to the teeth thereofand the means of attaching them to the beams of the implement, and hasfor its object to provide a harrow-tooth and means for fastening samethat will hold the tooth in a rigid position in the beam and prevent itfrom working out while the harrow is in operation and yet will permit ofinstantaneous removal of the tooth when desired that is strong andsubstantial, easy in operation, and reasonable in cost of construction.

Referring to the drawings, Figure 1 is a View in perspective of aportion of a harrowbeam, showing a portion of a tooth in position. Fig.2 is a view in perspective of a portion of the harrow-beam, showing theopenings for reception of the harrow-tooth; Fig. 3, a View of a tooth;Fig. 4, a view of the locking-wedge.

In the drawings, in which similar letters of reference denote like partsthroughout the several views, A represents the beam of a harrow, made ofchannel-iron, having rectangular openings B O in the flanges. Theopening B on the top of the beam is made with one end 19 larger than theother end I). It will be seen by this construction that there areprovided projections b in the opening B. The opening 0 is madepreferably of the same .width throughout its length, though slightlyshorter than the opening B.

D represents the tooth of a harrow, having lateral grooves don its foursides near the top.

E represents a wedge-shaped piece of metal having a notch e formed inone side.

F is a spring that may be formed by the portion of the beam A that isout out to form the hole B, turned down on one of its edges, or by apiece of spring-steel riveted to the beam.

The operation is as follows: The tooth D is passed through the part b ofthe opening 13 and the opening 0 until the grooves (Z are opposite theprojections Z). pushed into the opening I). The wedge E is then pushedinto the opening I) and C until the spring F comes in contact with thenotch e and the tooth is securely fastened in place. To remove thetooth, a pointed instrument of any kind, such as a screw-driver, isinserted between the wedge E and spring F and the spring F bent awayfrom the notch e. The wedge can then be withdrawn and the tooth removed.

I do not wish to be confined to the exact construction set out in theabove specification and show-n in the drawings, as the same may bealtered somewhat without departing from the spirit of my invention.Especially it may be found desirable to limit the number of grooves clon the tooth D to one or two or three instead of four and have but oneprojection b in the opening B.

Having thus described my invention, what I claim is- 1. In a harrow, abeam provided with an elongated rectangular opening, one end of which isnarrower than the other end, and means, attached to said beam, forsecuring a tooth in said beam, as and for the purpose shown anddescribed.

2. In a harrow, a beam provided with an elongated opening having itsopposite sides parallel, and one end narrower than the other end, and aleaf-spring, attached to said beam, for securing a tooth in said beam,as and for the purpose shown and described.

3. In a harrow, a beam having parallel flanges, a rectangular opening ineach of said flanges, and a spring fixed to one of said The tooth D isthen thereon, a notched wedge, and a spring on one of said walls, as andfor the purpose shown and described.

6. In a harrow, a beam having parallel flanges, a rectangular opening inone of its flanges, a spring adjacent to said opening, and a rectangularopening in the other flange, substantially as shown and described.

7. Inaharrow, abeam with parallel flanges, an elongated opening in oneof its flanges, the opposite sides of said opening parallel and one endnarrower than the other end, a spring adjacent to the larger end of saidopening extending between the flanges, and an elongated opening withparallel sides in the other flange opposite to the first-named opening,substantially as shown and described.

8. In a harrow, a beam made of channel- 7 iron, a portion of one of theflanges thereof cut out to form a rectangular opening therein, saidportion turned down on one of its edges to form a spring, and arectangular opening in the other flange, substantially as shown anddescribed.

9. In a harrow, a beam made of channeliron, a rectangular opening cutout of one of the flanges thereof, one end of which is narrower than theother end, the portion cut out being turned, between the flanges of saidchannel-iron, at the wider edge and curved to form a leaf-sprin g, and arectangular opening in the other flange, substantially as shown anddescribed.

10. In a harrow, the combination of a beam, an elongated openingtherein, one end of said opening narrower than the other end, a toothprovided with lateral grooves, a notched Wedge, and means for retainingsaid parts in an assembled position, substantially as shown anddescribed.

11. In a harrow, the combination of a beam, an elongatedopening'therein, one end of said opening narrower than the other end, aspring adjacent to said opening, a tooth provided with lateral grooves,and a notched wedge, substantially as shown and described.

12. In a harrow, the combination of a beam made of channel-iron, arectangular opening .cut out of one of its flanges, the cut-out portionturned between the flanges of said channel-iron and curved to form aleaf-spring, a tooth provided with lateral grooves, and a notched wedge,substantially as shown and described.

In testimony whereof I hereto affix my signature in the presence of twowitnesses.

JACOB W. MILLER.

WVitnesses:

G. E. MANSER, CHAS. E. WYATT.

